// SPDX-License-Identifier: GPL-2.0 #include <linux/delay.h> #include <linux/err.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/spmi.h> /* * SPMI register addr */ #define SPMI_CHANNEL_OFFSET … #define SPMI_SLAVE_OFFSET … #define SPMI_APB_SPMI_CMD_BASE_ADDR … #define SPMI_APB_SPMI_WDATA0_BASE_ADDR … #define SPMI_APB_SPMI_WDATA1_BASE_ADDR … #define SPMI_APB_SPMI_WDATA2_BASE_ADDR … #define SPMI_APB_SPMI_WDATA3_BASE_ADDR … #define SPMI_APB_SPMI_STATUS_BASE_ADDR … #define SPMI_APB_SPMI_RDATA0_BASE_ADDR … #define SPMI_APB_SPMI_RDATA1_BASE_ADDR … #define SPMI_APB_SPMI_RDATA2_BASE_ADDR … #define SPMI_APB_SPMI_RDATA3_BASE_ADDR … #define SPMI_PER_DATAREG_BYTE … /* * SPMI cmd register */ #define SPMI_APB_SPMI_CMD_EN … #define SPMI_APB_SPMI_CMD_TYPE_OFFSET … #define SPMI_APB_SPMI_CMD_LENGTH_OFFSET … #define SPMI_APB_SPMI_CMD_SLAVEID_OFFSET … #define SPMI_APB_SPMI_CMD_ADDR_OFFSET … /* Command Opcodes */ enum spmi_controller_cmd_op_code { … }; /* * SPMI status register */ #define SPMI_APB_TRANS_DONE … #define SPMI_APB_TRANS_FAIL … /* Command register fields */ #define SPMI_CONTROLLER_CMD_MAX_BYTE_COUNT … /* Maximum number of support PMIC peripherals */ #define SPMI_CONTROLLER_TIMEOUT_US … #define SPMI_CONTROLLER_MAX_TRANS_BYTES … struct spmi_controller_dev { … }; static int spmi_controller_wait_for_done(struct device *dev, struct spmi_controller_dev *ctrl_dev, void __iomem *base, u8 sid, u16 addr) { … } static int spmi_read_cmd(struct spmi_controller *ctrl, u8 opc, u8 slave_id, u16 slave_addr, u8 *__buf, size_t bc) { … } static int spmi_write_cmd(struct spmi_controller *ctrl, u8 opc, u8 slave_id, u16 slave_addr, const u8 *__buf, size_t bc) { … } static int spmi_controller_probe(struct platform_device *pdev) { … } static const struct of_device_id spmi_controller_match_table[] = …; MODULE_DEVICE_TABLE(of, spmi_controller_match_table); static struct platform_driver spmi_controller_driver = …; static int __init spmi_controller_init(void) { … } postcore_initcall(spmi_controller_init); static void __exit spmi_controller_exit(void) { … } module_exit(spmi_controller_exit); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_VERSION(…) …; MODULE_ALIAS(…) …;
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